/* @media only screen and (min-width: 1900px) {
  .video_bg .content{
    width: 78%;
  }
  .video_pic{
    width: 100%;
    height: 85vh;
    position: relative;
  }
} */
@media only screen and (max-width: 1900px) {
  .point_bg{
    width: 1300px;
    height: 570px;
  }
  .point_list li:nth-child(1){
    top: 110px;
    left: -70px;
  }
  .point_list li:nth-child(2){
    top: -100px;
	  left: 200px;
  }
  .point_list li:nth-child(3){
    top: -100px;
    right: 160px;
  }
  .point_list li:nth-child(4){
    top: 110px;
    right: -100px;
  }
  .point_con{
    top: 150px;
  }
  .point_con h1{
    font-size: 200px;
    line-height: 160px;
    margin-bottom: 30px;
  }
  .brand_box{
    width: 95%;
  }
  .brand_white{
    width: 80%;
  }
  .brand{
    height: 300px;
  }
  .brand .swiper-slide{
    height: 150px;
  }
  .video_bg .content{
    /* width: 1680px; */
    width: 64%;
  }
  .video_pic{
    width: 100%;
    /* height: 879px; */
    height: 70vh;
    margin: 0 auto;
    position: relative;
  }
  .video_di{
    /* height: 80px; */
    height: 70px;
  }
}
@media only screen and (max-width: 1680px) {
  .content {
    width: 1300px;
  }


  /*首页*/
  .point_bg{
    width: 1000px;
    height: 440px;
  }
  .point_list li:nth-child(1){
    top: 60px;
    left: -70px;
  }
  .point_list li:nth-child(2){
    top: -130px;
	  left: 190px;
  }
  .point_list li:nth-child(3){
    top: -130px;
    right: 100px;
  }
  .point_list li:nth-child(4){
    top: 60px;
    right: -120px;
  }
  .point_con{
    top: 90px;
  }
  .point_con h1{
    font-size: 200px;
    line-height: 160px;
    margin-bottom: 30px;
  }
  /* .video_bg .content{
    width: 1300px;
  } */
  .video_pic{
    height: 65vh;
  }
  .video_di{
    height: 100px;
  }
  .product_line{
    width: 50%;
  }
  .brand_box{
    width: 95%;
  }
  .brand_white{
    width: 88%;
  }
  .brand{
    height: 300px;
  }
  .brand .swiper-slide{
    height: 150px;
  }


  /* 企业介绍 */
  .about_picbox{
    width: 100%;
  }
  .year{
    width: 380px;
    padding: 50px 30px 0 0;
    right: 0;
  }
  .year h1{
    font-size: 50px;
    line-height: 56px;
  }
  .about_list{
    width: 65%;
    margin: 0 0 114px 0;
  }
}


@media only screen and (max-width: 1440px) {
  /*首页*/
  .video_bg .content{
    width: 70%;
  }
  .video_pic{
    width: 100%;
    height: 60vh;
    position: relative;
  }
  .product_box .content{
    width: 92%;
  }
  .product_right{
    width: 54%;
  }
}